diff options
Diffstat (limited to 'epan/dissectors/packet-ipp.c')
| -rw-r--r-- | epan/dissectors/packet-ipp.c | 628 |
1 files changed, 628 insertions, 0 deletions
diff --git a/epan/dissectors/packet-ipp.c b/epan/dissectors/packet-ipp.c new file mode 100644 index 0000000000..4b01e19cd2 --- /dev/null +++ b/epan/dissectors/packet-ipp.c @@ -0,0 +1,628 @@ +/* packet-ipp.c + * Routines for IPP packet disassembly + * + * Guy Harris <guy@alum.mit.edu> + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> +#include <ctype.h> + +#include <glib.h> +#include <epan/packet.h> +#include <epan/strutil.h> +#include "packet-http.h" + +static int proto_ipp = -1; + +static gint ett_ipp = -1; +static gint ett_ipp_as = -1; +static gint ett_ipp_attr = -1; + +static dissector_handle_t data_handle; + +#define PRINT_JOB 0x0002 +#define PRINT_URI 0x0003 +#define VALIDATE_JOB 0x0004 +#define CREATE_JOB 0x0005 +#define SEND_DOCUMENT 0x0006 +#define SEND_URI 0x0007 +#define CANCEL_JOB 0x0008 +#define GET_JOB_ATTRIBUTES 0x0009 +#define GET_JOBS 0x000A +#define GET_PRINTER_ATTRIBUTES 0x000B + +static const value_string operation_vals[] = { + { PRINT_JOB, "Print-Job" }, + { PRINT_URI, "Print-URI" }, + { VALIDATE_JOB, "Validate-Job" }, + { CREATE_JOB, "Create-Job" }, + { SEND_DOCUMENT, "Send-Document" }, + { SEND_URI, "Send-URI" }, + { CANCEL_JOB, "Cancel-Job" }, + { GET_JOB_ATTRIBUTES, "Get-Job-Attributes" }, + { GET_JOBS, "Get-Jobs" }, + { GET_PRINTER_ATTRIBUTES, "Get-Printer-Attributes" }, + { 0, NULL } +}; + +#define STATUS_SUCCESSFUL 0x0000 +#define STATUS_INFORMATIONAL 0x0100 +#define STATUS_REDIRECTION 0x0200 +#define STATUS_CLIENT_ERROR 0x0400 +#define STATUS_SERVER_ERROR 0x0500 + +#define STATUS_TYPE_MASK 0xFF00 + +#define SUCCESSFUL_OK 0x0000 +#define SUCCESSFUL_OK_IGN_OR_SUB_ATTR 0x0001 +#define SUCCESSFUL_OK_CONFLICTING_ATTR 0x0002 + +#define CLIENT_ERROR_BAD_REQUEST 0x0400 +#define CLIENT_ERROR_FORBIDDEN 0x0401 +#define CLIENT_ERROR_NOT_AUTHENTICATED 0x0402 +#define CLIENT_ERROR_NOT_AUTHORIZED 0x0403 +#define CLIENT_ERROR_NOT_POSSIBLE 0x0404 +#define CLIENT_ERROR_TIMEOUT 0x0405 +#define CLIENT_ERROR_NOT_FOUND 0x0406 +#define CLIENT_ERROR_GONE 0x0407 +#define CLIENT_ERROR_REQ_ENTITY_TOO_LRG 0x0408 +#define CLIENT_ERROR_REQ_VALUE_TOO_LONG 0x0409 +#define CLIENT_ERROR_DOC_FMT_NOT_SUPP 0x040A +#define CLIENT_ERROR_ATTR_OR_VAL_NOT_SUPP 0x040B +#define CLIENT_ERROR_URI_SCHEME_NOT_SUPP 0x040C +#define CLIENT_ERROR_CHARSET_NOT_SUPP 0x040D +#define CLIENT_ERROR_CONFLICTING_ATTRS 0x040E + +#define SERVER_ERROR_INTERNAL_ERROR 0x0500 +#define SERVER_ERROR_OPERATION_NOT_SUPP 0x0501 +#define SERVER_ERROR_SERVICE_UNAVAIL 0x0502 +#define SERVER_ERROR_VERSION_NOT_SUPP 0x0503 +#define SERVER_ERROR_DEVICE_ERROR 0x0504 +#define SERVER_ERROR_TEMPORARY_ERROR 0x0505 +#define SERVER_ERROR_NOT_ACCEPTING_JOBS 0x0506 +#define SERVER_ERROR_BUSY 0x0507 +#define SERVER_ERROR_JOB_CANCELED 0x0508 + +static const value_string status_vals[] = { + { SUCCESSFUL_OK, "Successful-OK" }, + { SUCCESSFUL_OK_IGN_OR_SUB_ATTR, "Successful-OK-Ignored-Or-Substituted-Attributes" }, + { SUCCESSFUL_OK_CONFLICTING_ATTR, "Successful-OK-Conflicting-Attributes" }, + { CLIENT_ERROR_BAD_REQUEST, "Client-Error-Bad-Request" }, + { CLIENT_ERROR_FORBIDDEN, "Client-Error-Forbidden" }, + { CLIENT_ERROR_NOT_AUTHENTICATED, "Client-Error-Not-Authenticated" }, + { CLIENT_ERROR_NOT_AUTHORIZED, "Client-Error-Not-Authorized" }, + { CLIENT_ERROR_NOT_POSSIBLE, "Client-Error-Not-Possible" }, + { CLIENT_ERROR_TIMEOUT, "Client-Error-Timeout" }, + { CLIENT_ERROR_NOT_FOUND, "Client-Error-Not-Found" }, + { CLIENT_ERROR_GONE, "Client-Error-Gone" }, + { CLIENT_ERROR_REQ_ENTITY_TOO_LRG, "Client-Error-Request-Entity-Too-Large" }, + { CLIENT_ERROR_REQ_VALUE_TOO_LONG, "Client-Error-Request-Value-Too-Long" }, + { CLIENT_ERROR_DOC_FMT_NOT_SUPP, "Client-Error-Document-Format-Not-Supported" }, + { CLIENT_ERROR_ATTR_OR_VAL_NOT_SUPP, "Client-Error-Attributes-Or-Values-Not-Supported" }, + { CLIENT_ERROR_URI_SCHEME_NOT_SUPP, "Client-Error-URI-Scheme-Not-Supported" }, + { CLIENT_ERROR_CHARSET_NOT_SUPP, "Client-Error-Charset-Not-Supported" }, + { CLIENT_ERROR_CONFLICTING_ATTRS, "Client-Error-Conflicting-Attributes" }, + { SERVER_ERROR_INTERNAL_ERROR, "Server-Error-Internal-Error" }, + { SERVER_ERROR_OPERATION_NOT_SUPP, "Server-Error-Operation-Not-Supported" }, + { SERVER_ERROR_SERVICE_UNAVAIL, "Server-Error-Service-Unavailable" }, + { SERVER_ERROR_VERSION_NOT_SUPP, "Server-Error-Version-Not-Supported" }, + { SERVER_ERROR_DEVICE_ERROR, "Server-Error-Device-Error" }, + { SERVER_ERROR_TEMPORARY_ERROR, "Server-Error-Temporary-Error" }, + { SERVER_ERROR_NOT_ACCEPTING_JOBS, "Server-Error-Not-Accepting-Jobs" }, + { SERVER_ERROR_BUSY, "Server-Error-Busy" }, + { SERVER_ERROR_JOB_CANCELED, "Server-Error-Job-Canceled" }, + { 0, NULL } +}; + +static int parse_attributes(tvbuff_t *tvb, int offset, proto_tree *tree); +static proto_tree *add_integer_tree(proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length, guint8 tag); +static void add_integer_value(gchar *tag_desc, proto_tree *tree, + tvbuff_t *tvb, int offset, int name_length, int value_length, guint8 tag); +static proto_tree *add_octetstring_tree(proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length); +static void add_octetstring_value(gchar *tag_desc, proto_tree *tree, + tvbuff_t *tvb, int offset, int name_length, int value_length); +static proto_tree *add_charstring_tree(proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length); +static void add_charstring_value(gchar *tag_desc, proto_tree *tree, + tvbuff_t *tvb, int offset, int name_length, int value_length); +static int add_value_head(gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length); + +static void +dissect_ipp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_tree *ipp_tree; + proto_item *ti; + int offset = 0; + gboolean is_request = (pinfo->destport == 631); + guint16 status_code; + gchar *status_fmt; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPP"); + if (check_col(pinfo->cinfo, COL_INFO)) { + if (is_request) + col_set_str(pinfo->cinfo, COL_INFO, "IPP request"); + else + col_set_str(pinfo->cinfo, COL_INFO, "IPP response"); + } + + if (tree) { + ti = proto_tree_add_item(tree, proto_ipp, tvb, offset, -1, + FALSE); + ipp_tree = proto_item_add_subtree(ti, ett_ipp); + + proto_tree_add_text(ipp_tree, tvb, offset, 2, "Version: %u.%u", + tvb_get_guint8(tvb, offset), + tvb_get_guint8(tvb, offset + 1)); + offset += 2; + + if (is_request) { + proto_tree_add_text(ipp_tree, tvb, offset, 2, "Operation-id: %s", + val_to_str(tvb_get_ntohs(tvb, offset), operation_vals, + "Unknown (0x%04x)")); + } else { + status_code = tvb_get_ntohs(tvb, offset); + switch (status_code & STATUS_TYPE_MASK) { + + case STATUS_SUCCESSFUL: + status_fmt = "Successful (0x%04x)"; + break; + + case STATUS_INFORMATIONAL: + status_fmt = "Informational (0x%04x)"; + break; + + case STATUS_REDIRECTION: + status_fmt = "Redirection (0x%04x)"; + break; + + case STATUS_CLIENT_ERROR: + status_fmt = "Client error (0x%04x)"; + break; + + case STATUS_SERVER_ERROR: + status_fmt = "Server error (0x%04x)"; + break; + + default: + status_fmt = "Unknown (0x%04x)"; + break; + } + proto_tree_add_text(ipp_tree, tvb, offset, 2, "Status-code: %s", + val_to_str(status_code, status_vals, status_fmt)); + } + offset += 2; + + proto_tree_add_text(ipp_tree, tvb, offset, 4, "Request ID: %u", + tvb_get_ntohl(tvb, offset)); + offset += 4; + + offset = parse_attributes(tvb, offset, ipp_tree); + + if (tvb_offset_exists(tvb, offset)) { + call_dissector(data_handle, + tvb_new_subset(tvb, offset, -1, -1), pinfo, + ipp_tree); + } + } +} + +#define TAG_TYPE(tag) ((tag) & 0xF0) +#define TAG_TYPE_DELIMITER 0x00 +#define TAG_TYPE_INTEGER 0x20 +#define TAG_TYPE_OCTETSTRING 0x30 +#define TAG_TYPE_CHARSTRING 0x40 + +#define TAG_END_OF_ATTRIBUTES 0x03 + +#define TAG_INTEGER 0x21 +#define TAG_BOOLEAN 0x22 +#define TAG_ENUM 0x23 + +#define TAG_OCTETSTRING 0x30 +#define TAG_DATETIME 0x31 +#define TAG_RESOLUTION 0x32 +#define TAG_RANGEOFINTEGER 0x33 +#define TAG_TEXTWITHLANGUAGE 0x35 +#define TAG_NAMEWITHLANGUAGE 0x36 + +#define TAG_TEXTWITHOUTLANGUAGE 0x41 +#define TAG_NAMEWITHOUTLANGUAGE 0x42 +#define TAG_KEYWORD 0x44 +#define TAG_URI 0x45 +#define TAG_URISCHEME 0x46 +#define TAG_CHARSET 0x47 +#define TAG_NATURALLANGUAGE 0x48 +#define TAG_MIMEMEDIATYPE 0x49 + +static const value_string tag_vals[] = { + /* Delimiter tags */ + { 0x01, "Operation attributes" }, + { 0x02, "Job attributes" }, + { TAG_END_OF_ATTRIBUTES, "End of attributes" }, + { 0x04, "Printer attributes" }, + { 0x05, "Unsupported attributes" }, + + /* Value tags */ + { 0x10, "Unsupported" }, + { 0x12, "Unknown" }, + { 0x13, "No value" }, + { TAG_INTEGER, "Integer" }, + { TAG_BOOLEAN, "Boolean" }, + { TAG_ENUM, "Enum" }, + { TAG_OCTETSTRING, "Octet string" }, + { TAG_DATETIME, "Date/Time" }, + { TAG_RESOLUTION, "Resolution" }, + { TAG_RANGEOFINTEGER, "Range of integer" }, + { TAG_TEXTWITHLANGUAGE, "Text with language" }, + { TAG_NAMEWITHLANGUAGE, "Name with language" }, + { TAG_TEXTWITHOUTLANGUAGE, "Text without language" }, + { TAG_NAMEWITHOUTLANGUAGE, "Name without language" }, + { TAG_KEYWORD, "Keyword" }, + { TAG_URI, "URI" }, + { TAG_URISCHEME, "URI scheme" }, + { TAG_CHARSET, "Character set" }, + { TAG_NATURALLANGUAGE, "Natural language" }, + { TAG_MIMEMEDIATYPE, "MIME media type" }, + { 0, NULL } +}; + +static int +parse_attributes(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + guint8 tag; + gchar *tag_desc; + int name_length, value_length; + proto_tree *as_tree = tree; + proto_item *tas = NULL; + int start_offset = offset; + proto_tree *attr_tree = tree; + + while (tvb_offset_exists(tvb, offset)) { + tag = tvb_get_guint8(tvb, offset); + tag_desc = val_to_str(tag, tag_vals, "Reserved (0x%02x)"); + if (TAG_TYPE(tag) == TAG_TYPE_DELIMITER) { + /* + * If we had an attribute sequence we were + * working on, we're done with it; set its + * length to the length of all the stuff + * we've done so far. + */ + if (tas != NULL) + proto_item_set_len(tas, offset - start_offset); + + /* + * This tag starts a new attribute sequence; + * create a new tree under this tag when we see + * a non-delimiter tag, under which to put + * those attributes. + */ + as_tree = NULL; + attr_tree = tree; + + /* + * Remember the offset at which this attribute + * sequence started, so we can use it to compute + * its length when it's finished. + */ + start_offset = offset; + + /* + * Now create a new item for this tag. + */ + tas = proto_tree_add_text(tree, tvb, offset, 1, + "%s", tag_desc); + offset++; + if (tag == TAG_END_OF_ATTRIBUTES) { + /* + * No more attributes. + */ + break; + } + } else { + /* + * Value tag - get the name length. + */ + name_length = tvb_get_ntohs(tvb, offset + 1); + + /* + * OK, get the value length. + */ + value_length = tvb_get_ntohs(tvb, offset + 1 + 2 + name_length); + + /* + * OK, does the value run past the end of the + * frame? + */ + if (as_tree == NULL) { + /* + * OK, there's an attribute to hang + * under a delimiter tag, but we don't + * have a tree for that tag yet; create + * a tree. + */ + as_tree = proto_item_add_subtree(tas, + ett_ipp_as); + attr_tree = as_tree; + } + + switch (TAG_TYPE(tag)) { + + case TAG_TYPE_INTEGER: + if (name_length != 0) { + /* + * This is an attribute, not + * an additional value, so + * start a tree for it. + */ + attr_tree = add_integer_tree(as_tree, + tvb, offset, name_length, + value_length, tag); + } + add_integer_value(tag_desc, attr_tree, tvb, + offset, name_length, value_length, tag); + break; + + case TAG_TYPE_OCTETSTRING: + if (name_length != 0) { + /* + * This is an attribute, not + * an additional value, so + * start a tree for it. + */ + attr_tree = add_octetstring_tree(as_tree, + tvb, offset, name_length, + value_length); + } + add_octetstring_value(tag_desc, attr_tree, tvb, + offset, name_length, value_length); + break; + + case TAG_TYPE_CHARSTRING: + if (name_length != 0) { + /* + * This is an attribute, not + * an additional value, so + * start a tree for it. + */ + attr_tree = add_charstring_tree(as_tree, + tvb, offset, name_length, + value_length); + } + add_charstring_value(tag_desc, attr_tree, tvb, + offset, name_length, value_length); + break; + } + offset += 1 + 2 + name_length + 2 + value_length; + } + } + + return offset; +} + +static const value_string bool_vals[] = { + { 0x00, "false" }, + { 0x01, "true" }, + { 0, NULL } +}; + +static proto_tree * +add_integer_tree(proto_tree *tree, tvbuff_t *tvb, int offset, + int name_length, int value_length, guint8 tag) +{ + proto_item *ti; + guint8 bool_val; + + switch (tag) { + + case TAG_BOOLEAN: + if (value_length != 1) { + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: Invalid boolean (length is %u, should be 1)", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + value_length); + } else { + bool_val = tvb_get_guint8(tvb, + offset + 1 + 2 + name_length + 2); + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: %s", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + val_to_str(bool_val, bool_vals, "Unknown (0x%02x)")); + } + break; + + case TAG_INTEGER: + case TAG_ENUM: + if (value_length != 4) { + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: Invalid integer (length is %u, should be 4)", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + value_length); + } else { + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: %u", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + tvb_get_ntohl(tvb, offset + 1 + 2 + name_length + 2)); + } + break; + + default: + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: Unknown integer type 0x%02x", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + tag); + break; + } + return proto_item_add_subtree(ti, ett_ipp_attr); +} + +static void +add_integer_value(gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length, guint8 tag) +{ + guint8 bool_val; + + offset = add_value_head(tag_desc, tree, tvb, offset, name_length, + value_length); + + switch (tag) { + + case TAG_BOOLEAN: + if (value_length == 1) { + bool_val = tvb_get_guint8(tvb, offset); + proto_tree_add_text(tree, tvb, offset, value_length, + "Value: %s", + val_to_str(bool_val, bool_vals, "Unknown (0x%02x)")); + } + break; + + case TAG_INTEGER: + case TAG_ENUM: + if (value_length == 4) { + proto_tree_add_text(tree, tvb, offset, value_length, + "Value: %u", tvb_get_ntohl(tvb, offset)); + } + break; + } +} + +static proto_tree * +add_octetstring_tree(proto_tree *tree, tvbuff_t *tvb, int offset, + int name_length, int value_length) +{ + proto_item *ti; + + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: %s", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + tvb_bytes_to_str(tvb, offset + 1 + 2 + name_length + 2, value_length)); + return proto_item_add_subtree(ti, ett_ipp_attr); +} + +static void +add_octetstring_value(gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length) +{ + offset = add_value_head(tag_desc, tree, tvb, offset, name_length, + value_length); + proto_tree_add_text(tree, tvb, offset, value_length, + "Value: %s", tvb_bytes_to_str(tvb, offset, value_length)); +} + +static proto_tree * +add_charstring_tree(proto_tree *tree, tvbuff_t *tvb, int offset, + int name_length, int value_length) +{ + proto_item *ti; + + ti = proto_tree_add_text(tree, tvb, offset, + 1 + 2 + name_length + 2 + value_length, + "%.*s: %.*s", + name_length, + tvb_get_ptr(tvb, offset + 1 + 2, name_length), + value_length, + tvb_get_ptr(tvb, offset + 1 + 2 + name_length + 2, value_length)); + return proto_item_add_subtree(ti, ett_ipp_attr); +} + +static void +add_charstring_value(gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb, + int offset, int name_length, int value_length) +{ + offset = add_value_head(tag_desc, tree, tvb, offset, name_length, + value_length); + proto_tree_add_text(tree, tvb, offset, value_length, + "Value: %.*s", value_length, tvb_get_ptr(tvb, offset, value_length)); +} + +static int +add_value_head(gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb, int offset, + int name_length, int value_length) +{ + proto_tree_add_text(tree, tvb, offset, 1, "Tag: %s", tag_desc); + offset += 1; + proto_tree_add_text(tree, tvb, offset, 2, "Name length: %u", + name_length); + offset += 2; + if (name_length != 0) { + proto_tree_add_text(tree, tvb, offset, name_length, + "Name: %.*s", name_length, + tvb_get_ptr(tvb, offset, name_length)); + } + offset += name_length; + proto_tree_add_text(tree, tvb, offset, 2, "Value length: %u", + value_length); + offset += 2; + return offset; +} + +void +proto_register_ipp(void) +{ +/* static hf_register_info hf[] = { + { &variable, + { "Name", "ipp.abbreviation", TYPE, VALS_POINTER }}, + };*/ + static gint *ett[] = { + &ett_ipp, + &ett_ipp_as, + &ett_ipp_attr, + }; + + proto_ipp = proto_register_protocol("Internet Printing Protocol", + "IPP", "ipp"); + /* proto_register_field_array(proto_ipp, hf, array_length(hf));*/ + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_ipp(void) +{ + dissector_handle_t ipp_handle; + + /* + * Register ourselves as running atop HTTP and using port 631. + */ + ipp_handle = create_dissector_handle(dissect_ipp, proto_ipp); + http_dissector_add(631, ipp_handle); + data_handle = find_dissector("data"); +} |